Use the afnetworking implementation to get Access-token in Basic authentication mode

Because the server side restricts the call API to get the data interface, we need to get a access-token before calling the API, so we need to implement this Access-token function in iOS. The server side is the use of the client Credentials Grand Way to issue tokens in ASP. Owin OAuth based on the implementation details of this blog.

According to the test code provided by the service side, the following:

Private AsyncTask Getaccesstoken (stringGranttype,stringUserName =NULL,stringPassword =NULL)  {    varParameters =Newdictionary<string,string>(); Parameters. ADD ("client_id","1234"); Parameters. ADD ("Client_secret","5678"); varClientId ="1234"; varClientsecret ="5678"; varParameters =Newdictionary<string,string>(); Parameters. ADD ("Grant_type", Granttype); if(!string. IsNullOrEmpty (userName) &&!string. IsNullOrEmpty (password)) {parameters. ADD ("username", UserName); Parameters. ADD ("Password", password); } _httpclient.defaultrequestheaders.authorization=NewAuthenticationheadervalue ("Basic", Convert.tobase64string (Encoding.ASCII.GetBytes (clientId+":"+Clientsecret))        ); varResponse =await_httpclient.postasync ("/token",Newformurlencodedcontent (parameters)); varResponsevalue =awaitResponse. Content.readasstringasync ();}

The code above shows that there are a few things that the client needs to do:

1, the client_id and Client_secret base64string encoding, in iOS has a special NSString BASE64 encoding Library, for details, see nsdata+base64.

2, the Grant_type for "client_credentials" as the parameter post to the server address;

3, the last note is afnetworking to achieve basic verification, when the value of the note when the basic has a space, and then set Content-type as "application/x-www-form-urlencoded; Charset=utf-8 ". So we can get access_token. The code is as follows:

Afhttprequestoperationmanager *manager =[Afhttprequestoperationmanager Manager]; NSString*client_id =@"1234"; NSString*client_secret =@"5678"; NSString*AUTHSTR = [NSString stringWithFormat:@"%@:%@", Client_id,client_secret]; NSData*authdata =[Authstr datausingencoding:nsutf8stringencoding]; NSString*authvalue = [NSString stringWithFormat:@"Basic%@", [Authdata base64encodedstringwithoptions:0]]; [Manager.requestserializer setvalue:authvalue Forhttpheaderfield:@"Authorization"]; [Manager.requestserializer SetValue:@"Application/x-www-form-urlencoded;charset=utf-8"Forhttpheaderfield:@"Content-type"]; Nsdictionary*params= @{@"Grant_type":@"client_credentials"}; [Manager POST:@"Http://api.cnblogs.com/token"Parametersparamssuccess:^ (Afhttprequestoperation *operation,IDresponseobject) {NSLog (@"JSON:%@", responseobject);} Failure:^ (Afhttprequestoperation *operation, Nserror *error) {NSLog (@"Error:%@", [error description]);}];

This completes the need for this scenario. The experiment obtains the Access_token in the Basic authentication way. This allows you to call the public API list after you have authorized the server.

Use the afnetworking implementation to get Access-token in Basic authentication mode